Hi all,
I'm trying to write a script that changes all negative values in a data frame
column to a small positive value, based on the the minimum value of the column.
However, I get the following error:
Error in if (x[i] < 0) { : argument is of length zero
As well, I would "minimum" to be the smallest of the non-negative values...
Aa_non_neg=(fieldTrial0809$Aa) # Copy column from data frame to manipulate
nonNegative = function(x)
{
minimum=min(x) # Should only use positive minimum!
for (i in x)
{
if(x[i]<0) # Found a negative value
{
x[i]=minimum/10 # Change to a new non-negative value
}
}
}
nonNegative(Aa_non_neg) # Apply function on column
_________________________________________________________________
Lagra alla dina foton på Skydrive. Det är enkelt och säkert!
http://www.skydrive.live.com
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
